Induction ranges work by using electromagnetic fields to directly heat pots and pans. Unlike traditional gas or electric stoves, which heat indirectly by warming the air or a heating element, induction cooktops use copper coils beneath a glass-ceramic surface to generate a magnetic field. When a ferromagnetic cookware, such as cast iron or some stainless steels, is placed on the cooktop, the magnetic field induces electric currents in the metal. These currents, known as eddy currents, generate heat due to the resistance of the metal, effectively turning the cookware itself into the heating element.
The process is highly efficient because energy is transferred directly to the cookware, minimizing heat loss. This results in faster cooking times and more precise temperature control. The cooktop surface remains relatively cool, as it only heats up from contact with the hot cookware, reducing the risk of burns and making it easier to clean spills.
Induction ranges require compatible cookware, typically those with a flat bottom and magnetic properties. Non-magnetic materials like aluminum, copper, or glass will not work unless they have a magnetic layer added to the base.
The control system of an induction range allows for rapid adjustments in heat levels, providing precise cooking control. Safety features often include automatic shut-off if no cookware is detected and child locks to prevent accidental activation.
Overall, induction ranges offer energy efficiency, speed, safety, and ease of cleaning, making them a popular choice in modern kitchens.